Car truck



Feb. 24, 1931. J. c. WHITRIDGE ET AL 1,793,574

CAR TRUCK Filed Sept. 12, 1929 2 Sheets-Sheet Feb. 24, 1931. .1. c. WHITRIDGE ET AL 1,793,574

CAR TRUCK I Filed Sept. 12, 1929 2 Sheets-Sheet 2 Patented Feb. 24, 1931 ms w Fetter JOHN CLIFFORD wnrrainen Ann wonrn, or coir-arises, oiimnssieimns TO THE BUCKEYE cesrrnes coaireniz, or COLUMBUS, onro Q. can rat-K Application filed September 12, 1929 Serial No. 392,234..

I This'invention relates to improvements in car trucks, and the primary object of the invention is to improve such trucks to permit them to be used on tracks of different gauges. '5 It-i's known that all'railwa s do not have tracks of standard gauge, andin Australia particularly, the railways are government owned, andthe various States have tracks of different gauges. 'Passengers and freight mustbe transferred at the State line. This inconvenience is ofcourse realized, and a com- .mission was appointed to investigate this condition, and it was decided to standardize on the 4 8% gaugetrack. The change over will take some time,'an d the intention now is to build the trucks, for cars runningon the wider gauges, so that they may bealso used on the narrower gauge.

lb was originally proposed to design axles enou h to fit the standard auge. This ar-' C t: in

rangenient would increase the distance from the center line of the axle journal to the center necessitate a reduction in the loading of the car.

We propose to replace the present axles with new ones, but still maintain the present- :relation between the center line of the axle journal and the wheel. In order to do this,

z the bolster must be specially designed to allow the side frames of the truck to be moved in the same'amount as the wheels. Therefore, another object of this invention is to provide a bolster which may be readily adapted for either narrow or wide gauge tracks. and which" will properly cooperate with the truck side frames, regardless of whether the truck is used for one gauge tracks:

or another. I V

With'the fore oing OlQJtBCt-S outlined and with other objects in View which will appear a. r as the description proceeds,the invention con- Fig. 1 is a side elevation of a portion of so that the wheels couldbe moved in far,

line of the wheel. considerably, and would a car truck with the wheels shown in dot and dash lines. V 1- V Fig. 2 is a top plan View of a portion of the same.

3 is a side elevation of one endportion of our improved holster with the. filling blocks omitted. I v,

Fig. 4: is a top plan view of the same, with the column fillers shown in dottedlines."

5 is an elevation of one of the column fillers. i s Fig. 6 is an end View of the same.

Figs. '1 and 2 show portionsof a known truck which is illustrated for the purpose of disclosing the invention. This truck com-i prises two side frame members 7, (onlyone of which is shown), supported'hywheels 8 7 which travel "on the railway tracks. Each 1 side frame has columns 9-tl1atare spaced apart by a bolster opening 10 in which an end 11 of the bolster is supported by coil springs 12. Lugs 1262 project from opposite sides of the bolster at each end thereof, and

the lugs 12a restrict lateral'movementofthe side frames, and consequently, the ordinary bolster of the type shown in Figsnl ,and2 will prevent thesiue franies being psed with. longer or shorter axles. sc

accordance with our'invention, as shownin Figs. 3 (:06 inclusive, 13 is a holster ofthe "usual type l1aving,inside column'guide's 14 arranged for useon the standard gauge, and

outside column, guides 15 arranged 'foruse on the wider gauge. The dist'anceX in Fig. 4' between the two columnguides or lugs is ordinarily-only slightly greater than the width of'the frame columns, as shown'in' Fig; 2,-hut in our'present invention, this distance is increased byone-halfthe difference in the gauges of trackg a'nd the yertical faces 16 -at the opposite sides of the bolsterare pierced by pairs' of apertures 1'? toreceiverivets that are used in fastening the column fillerlS against either-therlugs ltor' the lugs 15, as indicate'din dotted lines in Fig. 4. Of course, each column filler, like the holster, is made of metal, and is provided with two apertures 19, corresponding toeit-her pair of the apertures 17 The column filler castings are sion X to slightly greater than the width of the frame columns. I

When this new type of bolster isused on a truck for the wide gauge track, the side frames will be in the outermost position, and the column fillers 18 will be fastened to the bolster against the lugs 14:. On the other hand, when the bolsteris used on a truer for the staneard gauge track, the frames will be in their innermost position, and the column filler castings will be fastened to the bolster so as to abut against the lugs 15.

From the foregoing description, it will be clearthat we have provided a novel bolster which may be readily adapted to accommotrack or a standard gauge track, and this datetrucks to be used either on a wide gauge without unduly spacing the center line of the axle ournal awayfrom the center line of the wheel.

It is believed from the above description that the construction, operation and advantages of the invention may be readily understood by those skilled in the art, and we are aware that changes may bemade in'the details disclosed, without departing from the Letters Patent is:

spirit of the invention, as expressed in the claims.

What we claim and desire to secure by 1. In a car truck, a side frame having columns arranged at opposite sides of a bolster opening,,a bolster end extending into said opening, and having lugs overlapping the columns, and fillers arranged between only, one of the outer side surfaces of the columns and certain of said lugs.

specification.

either one of said columns, andmetal filler fastened to the bolster to reduce the dimen-g blocks fastened to the bolster and arranged between the columns and certain of said lugs.

5. In an adjustable car truck, a bolster having an end provided with pairs of oppositely projecting lugs, and means on the bolster to permit a filler block to be attached to either side of the bolster and in abutting relation with any one of said lugs.

6. A bolster for use with an adjustable car truck, provided at one end with pairs of oppositely projecting lugs, the sides of the bolster being apertured adjacent to each of said lugs to facilitate the attachment of. filler blocks to the bolster.

eXtending intovsaid opening and provided with pairs of oppositely projecting lugs overlapping the columns, and fillers secured to one of saidmembers and arranged between the columns and certain of said lugs.

8. In a car truck, a side frame having columns arranged at opposite sides of a bolster opening, a bolster end'extending into said opening and having lugs overlapping the columns, and fillers mounted on the bolster and arranged between the and certain of said lugs.

In testimony whereof, .We

columns have signedthis JOHN onirronn WHITRIDGE. HARRY H. WOLFE.

2. In a car truck, a side frame having columns arranged at opposite sides of a bolster opening, a bolster end extending into; said opening and provided with oppositely 3.. In a car truck, a side frame having columns arranged .at opposite sides of a bolster opening, a bolster end extending into said opening and provided with oppositely projecting pairs of guide lugs, the distance between the lugs of each pair being greater than the width ofeither 'on-eof the oolums,

fillers on the bolster arranged between the projecting pairs of guide lugs, the distance between the lugs of each pair being greater than the width ofeither one of the columns, j and fillers on the bolster arranged between the columns and certain of-said lugs.

into said openingqand provided'with 'pairsof oppositely projecting lugs overlapping the columns, the distance between the lugs of each pair being greater than the width of 

